= KAGRA Filter Cavity Meeting 2022/4/6 =

Date/Time:  2022/4/6  13:00 - 14:00

Connection: KAGRA Zoom2 (https://zoom.us/j/6676627462)

== Agenda ==
 * Scattering requirement for FIS (Michael)
  * Parametric amplification of the OPO will increase the scattering noise coupling
   * It depends on the green pump power
   * The green pump power should be decided based on the trade-off between the amount of squeezing and anti-squeezing.
   * This trade-off depends on the loss of the interferometer
 * How to switch FIS and FDS (HuaLi)
  * Need to preserve the mode-shape after the reflection mirror
  * Need to reduce the beam size on the Faraday isolators
   * Clear aperture is 10mm
   * Beam radius should be below 1.6mm
  * Size and location of the vacuum tubes between the chambers should be taken into consideration
  * We should have in-vac PZT mirrors for alignment
 * Status reports
  * Overall design: Matteo
  * Filter Cavity: Marc
  * FIS design: Yuhang 
  * Filter Cavity Control: Aritomi, Michael